Google has $31 billion of advertising revenue on their own sites (says their 2012 annual report.) They have about 1 billion unique users per month (from Comscore.) So they have about $31 per user per year of ad revenue on their own sites.
My guess is that most of this is search. Although it may be possible to figure out how much revenue per user Gmail makes, my guess is that it is between $10 and $15 per year.
I think FastMail is significantly cheaper ($5/yr for a personal account, says their website at https://www.fastmail.fm).
My guess is that most of this is search. Although it may be possible to figure out how much revenue per user Gmail makes, my guess is that it is between $10 and $15 per year.
I think FastMail is significantly cheaper ($5/yr for a personal account, says their website at https://www.fastmail.fm).